Azure OpenAI Example Not Working

Hi,

I tried the examples in the [Azure Open AI folder](https://github.com/teilomillet/gollm/tree/main/examples/azure_openai) but just getting an error on doing so.

```
2025/05/08 10:27:17 ERROR: Failed to create internal LLM [error unknown provider: azure-openai]
Error creating LLM: failed to create internal LLM: unknown provider: azure-openai
```

Many thanks.